Decarboxylative Aldol Reactions of Allyl β-Keto Esters via Heterobimetallic Catalysis
作者:Sha Lou、John A. Westbrook、Scott E. Schaus
DOI:10.1021/ja045981k
日期:2004.9.1
Mild and selective heterobimetallic-catalyzed decarboxylative aldol reactions involving allyl beta-keto esters have been developed. The reaction is promoted by Pd(0)- and Yb(III)-DIOP complexes at room temperature and involves the in situ formation of a ketoneenolate from allyl beta-keto esters followed by addition of the enolate to aldehydes. The reaction is a new example of heterobimetallic catalysis
Solid state aldol reactions of solvated and unsolvated lithium pinacolone enolate aggregates
作者:Huan Pang、Paul G. Williard
DOI:10.1016/j.tet.2019.130913
日期:2020.2
unsolvated lithium pinacolone enolate with a variety of solid aromatic aldehydes utilizing a mortar and pestle condition in comparison with the simple ball milling condition or tetrahydrofuran (THF) solution condition. In solution, the reactions are highly-selective with the aldol condensation product at room temperature. Under the condition of mortar and pestle, the reactions with unsolvated lithium pinacolone
IWASAKI, GENJI;SAEKI, SEITARO;HAMANA, MASATOMO, CHEM. LETT., 1986, N 2, 173-176
作者:IWASAKI, GENJI、SAEKI, SEITARO、HAMANA, MASATOMO
DOI:——
日期:——
A NOVEL NUCLEOPHILIC SUBSTITUTION OF THE FORMYL GROUP IN p-NITROBENZALDEHYDE WITH SOME CARBANIONS
作者:Genji Iwasaki、Seitaro Saeki、Masatomo Hamana
DOI:10.1246/cl.1986.173
日期:1986.2.5
p-Nitrobenzaldehyde reacts with some active methylene compounds in the presence of a strong base at low temperatures to give p-substituted nitrobenzenes by the two-step course involving the initial formation of the aldol adducts and the subsequent displacement of the carbinol moieties with excess carbanions.